Pictures this, y/n who had a pretty nasty breakup w Clark Kent, a man she knew since high school bc he was head-over-heels in love w Lois. Y/n, out of spite, works w Lex Luthor to create a pocket universe to take down Clark. But a failed test run causes her to go to over dimension in a completely different timeline, the 1960s in New York. She loses her memory and tries to guide her way through the new era, until she meets Johnny Storm. Clark finds out Y/n is missing, and goes out to find her after they repair the damages of Lex’s *working* pocket universe. DUN DUN DUNNN!